Home / 166,073,123.40-249,109,685.10-79,790,724.60

Finding the Fourth Proportional to 166,073,123.40, 249,109,685.10 and 79,790,724.60

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Solution

The fourth proportional to 166,073,123.40, 249,109,685.10 and 79,790,724.60 is: 119,686,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,073,123.40 : 249,109,685.10 = 79,790,724.60 : x
  2. Step 2: Convert to fraction form
    166,073,123.40/249,109,685.10 = 79,790,724.60/x
  3. Step 3: Cross multiply
    166,073,123.40x = 249,109,685.10 × 79,790,724.60
  4. Step 4: Simplify right side
    166,073,123.40x = 19,876,642,279,006,820
  5. Step 5: Solve for x
    x = 19,876,642,279,006,820/166,073,123.40
  6. Step 6: Final answer
    x = 119,686,086.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.